A comparison of neural networks and linear scoring models in the credit union environment

A comparison of neural networks and linear scoring models in the credit union environment

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Article ID: iaor19991256
Country: Netherlands
Volume: 95
Issue: 1
Start Page Number: 24
End Page Number: 37
Publication Date: Nov 1996
Journal: European Journal of Operational Research
Authors: , ,
Keywords: neural networks
Abstract:

The purpose of the present paper is to explore the ability of neural networks such as multilayer perceptrons and modular neural networks, and traditional techniques such as linear discriminant analysis and logistic regression, in building credit scoring models in the credit union environment. Also, since funding and small sample size often preclude the use of customized credit scoring models at small credit unions, we investigate the performance of generic models and compare them with customized models. Our results indicate that customized neural networks offer a very promising avenue if the measure of performance is percentage of bad loans correctly classified. However, if the measure of performance is percentage of good and bad loans correctly classified, logistic regression models are comparable to the neural networks approach. The performance of generic models was not as good as the customized models, particularly when it came to correctly classifying bad loans. Although we found significant differences in the results for the three credit unions, our modular neural network could not accommodate these differences, indicating that more innovative architectures might be necessary for building effective generic models.

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